package com.aaa.day03.mystatic;

/**
 * @author ：Teacher陈（86521760@qq.com）
 * @date ：Created in 2024/11/13 9:47
 * @description：
 * @modified By：
 * @version:
 */
public class MyHUtool {
    public static void main(String[] args) {
      /*  for (int i = 0; i < 10000; i++) {
            String  anInt = RandomUtil.randomString(4);
            System.out.println(anInt);
        }

        int gender = IdcardUtil.getGenderByIdCard("440211199912051319");
        System.out.println(gender);*/
        int a=100;
        int b=100;
        //Integer  -128-----+127，值保存在常量池中。
        Integer aa=100;
        Integer bb=100;

        Integer aaa=99;
        Integer bbb=99;

        System.out.println(a==b);
        System.out.println(aa == bb);
        System.out.println(aaa==bbb);


    }
}
